Braben founded her agency in 1994, built up a client roster that included Bauer Media, The Weather Channel and Starcom MediaVest Group, and sold it to MWW in November 2014. She remained with MWW until January 2016.

She has now created Magnify London, which will focus on b2b and corporate brands.

The agencies will work together on certain media, tech and marketing industry clients, with Braben providing high-level strategic advice on "developing the right framework and unique messaging and approach to really stand out in highly competitive and transformative markets", she said.

Braben said she was not yet able to name any of the clients brought in since she began work on the new venture earlier this month. She is currently its sole staffer.